RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[Mike Morris]

An acquaintance of mine worked at one of the laserdisk
manufacturing plants for about a year.  He told me that
while he was there the yield was never over 19%.  That
means that at least 80 out of every 100 pressed were
tossed into a dumpster.  They were hauled away and
ground up into plastic chunks, melted down (that was
part of the deal) and used to make drinking glasses.

At 11:58 AM 06/29/10, you wrote:
>Easy with the laserdisk now ;)
>
>I still have a nice collection here.
>
>Kb0wlf
>
> > -Original Message-
> > From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
> > buil...@yahoogroups.com] On Behalf Of nj902
> > Sent: Tuesday, June 29, 2010 1:50 PM
> > To: Repeater-Builder@yahoogroups.com
> > Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use
> > with D-STAR
> >
> >
> >
> > --- In Repeater-Builder@yahoogroups.com, "David Jordan" 
> > wrote:
> >
> > "... I think D-STAR will end up like Quadraphonic sound.just a matter
> > of time.  .."
> > 
> >
> > Agreed.  D-Star had the misfortune to roll out just ahead of the
> > economic downturn.
> >
> > D-Star may trudge on much like LaserDisk did - Pioneer was pretty much
> > the only one backing it just as D-Star has one major backer.
> >
> > LaserDisk survived until a better format won acceptance so it will be
> > interesting to see where amateur VHF/UHF digital voice winds up.
> >
> > This quote from the Wikipedia LaserDisk article may fit D-Star in a
> > couple of years:
> >
> > "...the format was poorly received in North America. In Europe and
> > Australia, it remained largely an obscure format. It was, however, much
> > more popular in Japan ..."
> >
> >
> >
> > 
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> > No virus found in this incoming message.
> > Checked by AVG - www.avg.com
> > Version: 8.5.439 / Virus Database: 271.1.1/2962 - Release Date:
> > 06/29/10 06:35:00
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>

[Repeater-Builder] Re: Doug Hall Voter - What Would One Pay.

[burkleoj]

In short, YES it did everything that we were needing it to do. After being 
around them for years in commercial service, I was finally able to afford one 
for amateur use.

I highly recommend the Doug Hall voters, they just plain work.

It may make your life a little nicer if the first time around you were to use 
radios of the same model throughout the system. This is not absolutely 
necessary, but in using the same radios, it makes balancing both the audio 
levels and the audio response curve much easier. When done properly a user can 
not tell which receiver is being captured by the person they are talking to.  

Joe - WA7JAW

--- In Repeater-Builder@yahoogroups.com, Pointman  wrote:
>
> Do you feel it was worth the money? In Other Words...did it do everything you 
> expected it to do?
> 
> de KM3W
> 
> 
> 

Re: [Repeater-Builder] OT:Printing google or Bing maps from the web

[Chuck Kelsey]

Sorry, hit paste.


  - Original Message - 
  From: Chuck Kelsey 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Tuesday, June 29, 2010 9:45 PM
  Subject: Re: [Repeater-Builder] OT:Printing google or Bing maps from the web





  Will a screen capture work? If so hit PRINT SCREEN, open Paint then hit copy 
and go from there.

  Chuck
  WB2EDV


- Original Message - 
From: Don Kupferschmidt 
To: Repeater-Builder@yahoogroups.com 
Sent: Tuesday, June 29, 2010 9:42 PM
Subject: [Repeater-Builder] OT:Printing google or Bing maps from the web


All,

I'm trying to print a map which was brought up on either google or bing 
maps on the internet and then export it to a bmp or jpg file which then I can 
print to an ink jet printer.

I've tried and tried to figure this out, but cannot to find a solution.

Has anyone been successful in doing this?  Or do I need more software?  O/S 
is x/p Pro.

TIA,

Don, KD9PT




  


--



  No virus found in this incoming message.
  Checked by AVG - www.avg.com 
  Version: 9.0.830 / Virus Database: 271.1.1/2971 - Release Date: 06/29/10 
14:35:00

Re: [Repeater-Builder] OT:Printing google or Bing maps from the web

[Chuck Kelsey]

Will a screen capture work? If so hit PRINT SCREEN, open Paint then hit copy 
and go from there.

Chuck
WB2EDV


  - Original Message - 
  From: Don Kupferschmidt 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Tuesday, June 29, 2010 9:42 PM
  Subject: [Repeater-Builder] OT:Printing google or Bing maps from the web





  All,

  I'm trying to print a map which was brought up on either google or bing maps 
on the internet and then export it to a bmp or jpg file which then I can print 
to an ink jet printer.

  I've tried and tried to figure this out, but cannot to find a solution.

  Has anyone been successful in doing this?  Or do I need more software?  O/S 
is x/p Pro.

  TIA,

  Don, KD9PT

[Repeater-Builder] OT:Printing google or Bing maps from the web

[Don Kupferschmidt]

All,

I'm trying to print a map which was brought up on either google or bing maps on 
the internet and then export it to a bmp or jpg file which then I can print to 
an ink jet printer.

I've tried and tried to figure this out, but cannot to find a solution.

Has anyone been successful in doing this?  Or do I need more software?  O/S is 
x/p Pro.

TIA,

Don, KD9PT

RE: [Repeater-Builder] Midland Radios question

[Andy Brinkley]

Midland Base-Tech Series, mid 1990's vintage, 

prices shown are from the August 94 Midland pricing manual:

 

71-7900 Control Panel
$ 585.00

71-3300B 30-70 watt RF amp
$1310.00   

71-3051 4 channel eprom programmable exciter  $1205.00   
71-3052B 4 channel crystal controlled receiver $1005.00

 

Can be converted to 2 meters with proper tuning / programming / alignment

 

 

Andy
--
NC Certified Firefighter III / EMT-A
FCC Licensed Technician / Amateur Call NC4AB / Echolink Node 5761
  www.brinkleyelectronics.com

Re: [Repeater-Builder] QUICK! Minimum cards for Mastr2 Station to repeat?

[Nate Duehr]

On 6/28/2010 9:52 AM, AJ wrote:
I had a controller failure over the weekend causing some serious audio 
issues on a Mastr II repeater we deployed last week. What are the 
minimum control shelf cards needed to put the repeater back in to a 
"factory" repeat? I can get an IDer wired up in band to meet legal 
requirements but need to get regular voice repeat functioning ASAP.

Thanks!
_


Note: Depending on the modifications done to use the external 
controller, just stuffing the factory repeat audio and repeater 
controller cards may or may not work.


You may be making more work for yourself to "un-mod" the Station, then 
put it back when you get your replacement controller.


Nate

[Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[nj902]

--- In Repeater-Builder@yahoogroups.com, "Chris Curtis"  wrote:

"... Easy with the laserdisk now ;)
 
 I still have a nice collection here..."

--

I also have a Lasterdisk collection! [and a working player] - and D-Star and 
P25 and Trbo and ... [maybe I'm a technology junkie?]

RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[David Jordan]

No argument on more going on with D-STAR you can see it happening now.loads
of used D-STAR equipment for sale on club swap and shop list, ebay, etc.

 

  _  

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of John
Sent: Tuesday, June 29, 2010 3:28 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with
D-STAR

 

  



--- In Repeater-Builder@yahoogroups.com
 , "nj902"  wrote:

> D-Star may trudge on much like LaserDisk did - Pioneer was pretty much the
only one backing it just as D-Star has one major backer. 
> 

You mean like MotoTrbo?

:)

BTW - there is a lot more going on in D-STAR and you will probably see a big
growth spurt (especially in repeaters) later this year.

[Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[John]

--- In Repeater-Builder@yahoogroups.com, "nj902"  wrote:

> D-Star may trudge on much like LaserDisk did - Pioneer was pretty much the 
> only one backing it just as D-Star has one major backer.  
> 

You mean like MotoTrbo?

:)

BTW - there is a lot more going on in D-STAR and you will probably see a big 
growth spurt (especially in repeaters) later this year.

RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[David Jordan]

Sounds about right!

 

  _  

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chris Curtis
Sent: Tuesday, June 29, 2010 2:59 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use
with D-STAR

 

  

Easy with the laserdisk now ;)

I still have a nice collection here.

Kb0wlf

> -Original Message-
> From: Repeater-Builder@yahoogroups.com
  [mailto:Repeater-
> buil...@yahoogroups.com  ] On Behalf Of
nj902
> Sent: Tuesday, June 29, 2010 1:50 PM
> To: Repeater-Builder@yahoogroups.com
 
> Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use
> with D-STAR
> 
> 
> 
> --- In Repeater-Builder@yahoogroups.com
 , "David Jordan" 
> wrote:
> 
> "... I think D-STAR will end up like Quadraphonic sound.just a matter
> of time. .."
> --
> 
> Agreed. D-Star had the misfortune to roll out just ahead of the
> economic downturn.
> 
> D-Star may trudge on much like LaserDisk did - Pioneer was pretty much
> the only one backing it just as D-Star has one major backer.
> 
> LaserDisk survived until a better format won acceptance so it will be
> interesting to see where amateur VHF/UHF digital voice winds up.
> 
> This quote from the Wikipedia LaserDisk article may fit D-Star in a
> couple of years:
> 
> "...the format was poorly received in North America. In Europe and
> Australia, it remained largely an obscure format. It was, however, much
> more popular in Japan ..."
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.439 / Virus Database: 271.1.1/2962 - Release Date:
> 06/29/10 06:35:00

RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[Chris Curtis]

Easy with the laserdisk now ;)

I still have a nice collection here.

Kb0wlf

> -Original Message-
> From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
> buil...@yahoogroups.com] On Behalf Of nj902
> Sent: Tuesday, June 29, 2010 1:50 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use
> with D-STAR
> 
> 
> 
> --- In Repeater-Builder@yahoogroups.com, "David Jordan" 
> wrote:
> 
> "... I think D-STAR will end up like Quadraphonic sound.just a matter
> of time.  .."
> 
> 
> Agreed.  D-Star had the misfortune to roll out just ahead of the
> economic downturn.
> 
> D-Star may trudge on much like LaserDisk did - Pioneer was pretty much
> the only one backing it just as D-Star has one major backer.
> 
> LaserDisk survived until a better format won acceptance so it will be
> interesting to see where amateur VHF/UHF digital voice winds up.
> 
> This quote from the Wikipedia LaserDisk article may fit D-Star in a
> couple of years:
> 
> "...the format was poorly received in North America. In Europe and
> Australia, it remained largely an obscure format. It was, however, much
> more popular in Japan ..."
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.439 / Virus Database: 271.1.1/2962 - Release Date:
> 06/29/10 06:35:00

[Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[nj902]

--- In Repeater-Builder@yahoogroups.com, "David Jordan"  wrote:

"... I think D-STAR will end up like Quadraphonic sound.just a matter of time.  
.."


Agreed.  D-Star had the misfortune to roll out just ahead of the economic 
downturn. 

D-Star may trudge on much like LaserDisk did - Pioneer was pretty much the only 
one backing it just as D-Star has one major backer.  

LaserDisk survived until a better format won acceptance so it will be 
interesting to see where amateur VHF/UHF digital voice winds up.

This quote from the Wikipedia LaserDisk article may fit D-Star in a couple of 
years:

"...the format was poorly received in North America. In Europe and Australia, 
it remained largely an obscure format. It was, however, much more popular in 
Japan ..."

[Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[John]

--- In Repeater-Builder@yahoogroups.com, "Mark"  wrote:
>
> Thanks to everyone for the replies.  It appears that, at least for now, I
> think I'll leave well enough alone.
> 
> The reason I was considering a "dual-mode" system is that another local
> repeater (a Quantar) operates in that manner on 2m.  Once you are aware that
> the "heterodyne sound" is really digital comms taking place, it's no big
> deal.  We operate just fine that way - if you can afford to purchase a
> digital radio (APCO 25m in this case) you can operate either mode.  If not,
> when major events occur, they operate analog anyway.  It just gives those
> who prefer digital an opportunity to use that mode if they so desire.
> 
> Again, considering that digital isn't a big thing in my neck of the woods, I
> think I'll take a stand-by until something forces the change.  After all, if
> it ain't broke, why fix it?
> 
>  
> 
> Mark - N9WYS
>


Probably wise -- if you happen to find an underutilized pair, maybe my posting 
will be useful for an additional repeater.  You might find this article 
interesting: 

RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[David Jordan]

HAHA  D-STAR doesn't provide amateur radio price points either.D-STAR is off
the shelf which makes it popular for appliance operator/trustees who want to
tinker with digital as compared to digging into a P-25 mode and upgrade
which takes significant technical skills when compared to appliance operator
type.

 

I think D-STAR will end up like Quadraphonic sound.just a matter of time.
If prices drop 60% on D-STAR that might keep it alive longer but it is
nonsense to think VHF users are going to walk away from analog under the
current scenario and economic times.

 

As stated earlier D-STAR makes no sense for ACS.  

 

Sorry for the drift,

Dave

Wa3gin

  _  

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of John
Sent: Tuesday, June 29, 2010 1:04 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with
D-STAR

 

  

Some of the concerns are addressed in this posting: 


Basically, D-STAR is by far the most developed and deployed Amateur Radio
specific true digital voice and data network out there (We see a few P25,
MotoTrbo, and NXDN/IDas systems on Amateur Radio, but none with the network
of D-STAR -- see http://dstarusers.org). Mototrbo, P25, etc. just doesn't
provide amateur oriented radios at amateur oriented price points.

But these are probably topics for other lists.

[Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[John]

Some of the concerns are addressed in this posting: 


Basically, D-STAR is by far the most developed and deployed Amateur Radio 
specific true digital voice and data network out there (We see a few P25, 
MotoTrbo, and NXDN/IDas systems on Amateur Radio, but none with the network of 
D-STAR -- see http://dstarusers.org).  Mototrbo, P25, etc. just doesn't provide 
amateur oriented radios at amateur oriented price points.

But these are probably topics for other lists.

--- In Repeater-Builder@yahoogroups.com,  wrote:
>
> Why not just install a Motorola Mototrbo XPR8300 repeater and call it done.
> If you want to have data on one port and voice on the other you can or for a
> single site you can add the mix mode option and have digital and analog in
> the same repeater. If you would prefer to IP site connect them you can have
> a local channel and link channel.
> 

Re: [Repeater-Builder] Motorola Mystery Box

[Scott Overstreet]

Many thanks Randy -and all other commenters--

My mystery is solvedamazing the knowledge that lurks within this group 
and all that it took on my part was to ask for a little of it. After I sent 
my milliseconds comment, I got to thinking in microsecondswhereas a 
total delay of about a second seemed impossible in the box size, a total 
delay of about a millisecond in 100 microsecond steps sounded within the 
realm of possibility---and that is what is is. I'll put the instruments on 
it to see the performance they achieved 40 years ago when I think it was 
built---(7109 date code on the box).

Now, a quick follow on question. If the delay box is used to match the data 
arrival from  two simulcasting transmitters, call them A & B, to a point C, 
what happens to the match when point C moves? It seems to me that if point C 
is a moving target, that adequate match could easily be lost anyway. Guess I 
need to study up on simulcast system design.

Thanks again--

Scott


  - Original Message - 
  From: Randy Fisher
  To: Repeater-Builder@yahoogroups.com
  Sent: Monday, June 28, 2010 5:39 PM
  Subject: RE: [Repeater-Builder] Motorola Mystery Box




  This is a 600 Ohm Delay line used in setting audio delay's on Simulcast 
paging systems.

  The delay is in micro seconds.

  I have used several of these on an old Ameritech 158.100 paging system.

  This unit goes between the Link receiver or a leased audio telephone line, 
you set the delay by soldering to the correct post.



  I hope this helps,



  Randy WB9VLE



  From: Repeater-Builder@yahoogroups.com 
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Scott Overstreet
  Sent: Monday, June 28, 2010 2:57 PM
  To: Repeater-Builder@yahoogroups.com
  Cc: Scott Overstreet
  Subject: [Repeater-Builder] Motorola Mystery Box





  Hello All--



  In answer to Ted, Eric and others---Yes, I guess it could be a taped delay 
line --but at telephone audio? I'm saying telephone because of the telco 
wire attachedWhat do you think the numbers might 
be?---milli-seconds? seems like that would take a lot of network but 
then there is a fair amount of space in the box but that would probably  add 
up to a lot of attenuation.



  First, see the pictures--- as you can see, the box is metal and soldered 
and the connections are as it came to me.



  Since my first message, I have ask some questionsit seems that it came 
this way with a junked 65Mcs Micor that had been in paging 
ervice  -that's all I know and I'm still mystified-what is it and 
what was it used for?



  Maybe its time to make some bench measurements.



  Many thanks,



  Scott



   

[Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[John]

--- In Repeater-Builder@yahoogroups.com, Mike Morris  wrote:
>
> The biggest problem with multimode systems you describe (including
> the quantar) is that you have two separate user pools on a single box
> on a single channel.   The DStar users don't have any idea of what is
> happening on the conventional side and the conventional folks have
> no idea what is going on the digital side.
> 

Agreed, but people keep wanting to try it. :)

[Repeater-Builder] Midland Radios question

[dwmcg...@bellsouth.net]

Can anyone tell me something about the following hiband Midland Radios;

71-790 repeater
71-3300B amp
71-3051 xmtr
71-3052B rcvr

Was able to find a little info but not much detail.  Appreciate and help or 
comments.

Email reply to dwmcg...@bellsouth.net

Thanks, Dale

Re: [Repeater-Builder] Recording of mysterious noise

[Tony KT9AC]

Try dropping PL on the tail. Could be a signal mixing with your repeater 
offset and allowing your PL to keep your repeater receiver open. For 
example: 442.000 transmit with 100Hz PL + 5Mhz signal = 447.000 with 
100Hz PL.


Doesn't matter if you use PL or DPL - it still loops back in, and ham or 
commercial - on UHF they both use 5Mhz split. I have a 1250Khz AM 
station 1 mile from my site and its 4th harmonic is 5Mhz. Probably 
mixing somewhere locally; less when its raining (rusty bolt theory).


I run PL decode and CSQ encode to keep this from happening, or split the 
PL tones differently. Of course its probably not the AM stations' fault, 
but as Joe said its better than listening to it.


Tony

On 06/29/2010 06:21 AM, Joe wrote:


It sounds like the squelch closes on your receiver when the signal
drops, is that correct? If so, that would eliminate the possibility of
the noise being the output of a repeater that has a tail timer. Can you
detect any tail timer at all? If I were to make a guess, it sounds like
a transmitter that is keying up with noise, such as an RF link for
something, and noise on the link input is keying up the transmitter.
Are you able to detect any PL tone in the noise that you hear? PL may
give you a clue as to the source of the signal. Can you DF the signal?
Is this in the ham band, or commercial freq? Does it happen more at
certain times of the day? Is it weather related?

A trick that I used was to set up a spectrum analyzer and watch 10-20Mhz
at a time. I would listen to the noise and look for another signal that
keys up at the same time. Very time consuming, but can be very
effective. It's a crap shoot, but it beats just sitting and listening
to the noise. Some ham rigs even offer a crude spectrum analyzer mode,
such as my Yaesu VX7-R HT. I've used the VX7-R to look for signals with
some success. (I had to read the manual to get the darn think out of
the SA mode!)

I used to do a lot of tracking down of interference. It helps to
analyze what is not causing the noise and don't always focus on what you
think it is. Eliminating what is not causing the interference many
times helps you focus in on what is really causing it.

Good luck and 73,
Joe, K1ike

On 6/29/2010 4:15 AM, gm7svk wrote:
> Hello,
>
> Loaded sample to files section.
> Has anyone encountered this sort of noise on a system or have a 
suggestion as to what might be generating it? Proving difficult to 
determine source.

>
> Thank you,
> Doug - GM7SVK
>
>

RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[Mark]

Thanks to everyone for the replies.  It appears that, at least for now, I
think I'll leave well enough alone.

The reason I was considering a "dual-mode" system is that another local
repeater (a Quantar) operates in that manner on 2m.  Once you are aware that
the "heterodyne sound" is really digital comms taking place, it's no big
deal.  We operate just fine that way - if you can afford to purchase a
digital radio (APCO 25m in this case) you can operate either mode.  If not,
when major events occur, they operate analog anyway.  It just gives those
who prefer digital an opportunity to use that mode if they so desire.

Again, considering that digital isn't a big thing in my neck of the woods, I
think I'll take a stand-by until something forces the change.  After all, if
it ain't broke, why fix it?

 

Mark - N9WYS

RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[k7pfj]

Why not just install a Motorola Mototrbo XPR8300 repeater and call it done.
If you want to have data on one port and voice on the other you can or for a
single site you can add the mix mode option and have digital and analog in
the same repeater. If you would prefer to IP site connect them you can have
a local channel and link channel.

 

 

Mike Mullarkey K7PFJ

6886 Sage Ave

Firestone, Co 80504

303-736-9693 

 

 

  _  

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of n2...@hvc.rr.com
Sent: Tuesday, June 29, 2010 8:05 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with
D-STAR

 

  

I would think making it a "Dual Mode" rptr. relatively simple..
You would need to built a A/B switch to switch from the D-Star
controller to a Normal rptr. controller.. I simple 4PDT relay would
would work.. 

Since the D-Star controller doesn't use COR and I doubt it uses and
any kind if CTCSS, you could add a CTCSS decoder w/ a little hang time to
drive the A/B switch.. Or you could use the COR line from
the rprt. to drive the switch, using the CTCSS decode line to only
allow the COR to activate the switch if the CTCSS is not present.

The latter solution is more logic driven and does not have to worry
about making the Hang time of the switch match up Hang time of the
rptr.. Either way, it should be fairly straight forward..

As Mike has already pointed out, you do have the problem with 2
different groups trying to use the rptr.. 

-Pete N2MCI

--- In Repeater-Builder@yahoogroups.com
 , "Mark"  wrote:
>
> John,
> 
> I currently am Trustee for a TKR-820 operating on 444.5500. I wonder - is
> this conversion "dual-mode" capable, meaning, can it be accessed BOTH via
> D-STAR and analog radios, or does it render analog access unusable? I do
> not want to do this if it eliminates analog access, since this is an
> Emergency Management-affiliated repeater and many users in my area are not
> D-STAR capable. As such, I'd have to maintain a dual-mode system, similar
> to those using Motorola QUANTAR repeaters for digital (APCO 25) as well as
> analog access.
> 
> Next questions is, my machine is a multi-receive site (read: SpectraTAC)
> system - is the D-STAR processing done on the FINAL received signal before
> being passed to the transmitter, or would I need to convert all the
> receivers in the system to be compatible? In my system, I do not use the
> internal receiver in the TKR-820 - I feed a voted signal in from the
> comparator for repeat.
> 
> Photos of my system (with one receiver configured) can be seen at the
> Repeater-Builder Yahoo group:
>
http://groups.yahoo.com/group/Repeater-Builder/photos/album/613821601/pic/li
> st
> Look at those associated with WW9AE
> 
> If it can be configured for a dual-mode/multi-RX site configuration, I
might
> seriously consider adapting our machine.
> 
> Thanks!
> Mark - N9WYS
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
  On Behalf Of John
> 
> My conversion project is at:
> 
>
http://k7ve.org/blog/2010/06/converting-the-kenwood-tkr-820-to-use-with-d-st
> ar/ 
> 
> 73 de K7VE
>

[Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR

[n2mci]

I would think making it a "Dual Mode" rptr. relatively simple..
You would need to built a A/B switch to switch from the D-Star
controller to a Normal rptr. controller.. I simple 4PDT relay would
would work.. 

Since the D-Star controller doesn't use COR and I doubt it uses and
any kind if CTCSS, you could add a CTCSS decoder w/ a little hang time to drive 
the A/B switch.. Or you could use the COR line from
the rprt. to drive the switch, using the CTCSS decode line to only
allow the COR to activate the switch if the CTCSS is not present.

The latter solution is more logic driven and does not have to worry
about making the Hang time of the switch match up Hang time of the
rptr.. Either way, it should be fairly straight forward..

As Mike has already pointed out, you do have the problem with 2
different groups trying to use the rptr.. 

-Pete N2MCI

--- In Repeater-Builder@yahoogroups.com, "Mark"  wrote:
>
> John,
> 
> I currently am Trustee for a TKR-820 operating on 444.5500.  I wonder - is
> this conversion "dual-mode" capable, meaning, can it be accessed BOTH via
> D-STAR and analog radios, or does it render analog access unusable?  I do
> not want to do this if it eliminates analog access, since this is an
> Emergency Management-affiliated repeater and many users in my area are not
> D-STAR capable.  As such, I'd have to maintain a dual-mode system, similar
> to those using Motorola QUANTAR repeaters for digital (APCO 25) as well as
> analog access.
> 
> Next questions is, my machine is a multi-receive site (read: SpectraTAC)
> system - is the D-STAR processing done on the FINAL received signal before
> being passed to the transmitter, or would I need to convert all the
> receivers in the system to be compatible?  In my system, I do not use the
> internal receiver in the TKR-820 - I feed a voted signal in from the
> comparator for repeat.
> 
> Photos of my system (with one receiver configured) can be seen at the
> Repeater-Builder Yahoo group:
> http://groups.yahoo.com/group/Repeater-Builder/photos/album/613821601/pic/li
> st
> Look at those associated with WW9AE
> 
> If it can be configured for a dual-mode/multi-RX site configuration, I might
> seriously consider adapting our machine.
> 
> Thanks!
> Mark - N9WYS
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com On Behalf Of John
> 
> My conversion project is at:
> 
> http://k7ve.org/blog/2010/06/converting-the-kenwood-tkr-820-to-use-with-d-st
> ar/ 
> 
> 73 de K7VE
>

Re: [Repeater-Builder] Recording of mysterious noise

[Chuck Kelsey]

To me it sounds like either a system with intermod involving the repeater's 
transmitter getting into it's receiver, or similar to two repeater systems 
with one being on the reverse pair. I lean toward the first possibility. And 
if I were to guess, I'd say this is on UHF. If you shut off the TX while 
this is happening, does the noise disappear on the local RX?

Chuck
WB2EDV


- Original Message - 
From: "gm7svk" 
To: 
Sent: Tuesday, June 29, 2010 4:15 AM
Subject: [Repeater-Builder] Recording of mysterious noise


> Hello,
>
> Loaded sample to files section.
> Has anyone encountered this sort of noise on a system or have a suggestion 
> as to what might be generating it? Proving difficult to determine source.
>
> Thank you,
> Doug - GM7SVK
>
>
> 

Re: [Repeater-Builder] Recording of mysterious noise

[Joe]

It sounds like the squelch closes on your receiver when the signal 
drops, is that correct?  If so, that would eliminate the possibility of 
the noise being the output of a repeater that has a tail timer.  Can you 
detect any tail timer at all?  If I were to make a guess, it sounds like 
a transmitter that is keying up with noise, such as an RF link for 
something, and noise on the link input is keying up the transmitter.  
Are you able to detect any PL tone in the noise that you hear?  PL may 
give you a clue as to the source of the signal.  Can you DF the signal?  
Is this in the ham band, or commercial freq?  Does it happen more at 
certain times of the day?  Is it weather related?

A trick that I used was to set up a spectrum analyzer and watch 10-20Mhz 
at a time.  I would listen to the noise and look for another signal that 
keys up at the same time.  Very time consuming, but can be very 
effective.  It's a crap shoot, but it beats just sitting and listening 
to the noise.  Some ham rigs even offer a crude spectrum analyzer mode, 
such as my Yaesu VX7-R HT.  I've used the VX7-R to look for signals with 
some success.  (I had to read the manual to get the darn think out of 
the SA mode!)

I used to do a lot of tracking down of interference.  It helps to 
analyze what is not causing the noise and don't always focus on what you 
think it is.  Eliminating what is not causing the interference many 
times helps you focus in on what is really causing it.

Good luck and 73,
Joe, K1ike


On 6/29/2010 4:15 AM, gm7svk wrote:
> Hello,
>
> Loaded sample to files section.
> Has anyone encountered this sort of noise on a system or have a suggestion as 
> to what might be generating it? Proving difficult to determine source.
>
> Thank you,
> Doug - GM7SVK
>
>

RE: [Repeater-Builder] Converting the Kenwood TKR-820 to use with D-STAR

[Mike Morris]

The biggest problem with multimode systems you describe (including
the quantar) is that you have two separate user pools on a single box
on a single channel.   The DStar users don't have any idea of what is
happening on the conventional side and the conventional folks have
no idea what is going on the digital side.

This is not what you want on an event - be it a city parade or a
multi-injury traffic accident or a Katrina.  You want to promote
communications, not build walls.

And a little trick - the URL (link) won't break with word wrap if you
put "<" and ">" characters around it (and if it does, your mail reader
is broken).

Like this


Mike WA6ILQ


At 09:54 AM 06/28/10, you wrote:
>John,
>
>I currently am Trustee for a TKR-820 operating on 444.5500.  I wonder - is
>this conversion "dual-mode" capable, meaning, can it be accessed BOTH via
>D-STAR and analog radios, or does it render analog access unusable?  I do
>not want to do this if it eliminates analog access, since this is an
>Emergency Management-affiliated repeater and many users in my area are not
>D-STAR capable.  As such, I'd have to maintain a dual-mode system, similar
>to those using Motorola QUANTAR repeaters for digital (APCO 25) as well as
>analog access.
>
>Next questions is, my machine is a multi-receive site (read: SpectraTAC)
>system - is the D-STAR processing done on the FINAL received signal before
>being passed to the transmitter, or would I need to convert all the
>receivers in the system to be compatible?  In my system, I do not use the
>internal receiver in the TKR-820 - I feed a voted signal in from the
>comparator for repeat.
>
>Photos of my system (with one receiver configured) can be seen at the
>Repeater-Builder Yahoo group:
>http://groups.yahoo.com/group/Repeater-Builder/photos/album/613821601/pic/li
>st
>Look at those associated with WW9AE
>
>If it can be configured for a dual-mode/multi-RX site configuration, I might
>seriously consider adapting our machine.
>
>Thanks!
>Mark - N9WYS
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com On Behalf Of John
>
>My conversion project is at:
>
>http://k7ve.org/blog/2010/06/converting-the-kenwood-tkr-820-to-use-with-d-st
>ar/
>
>73 de K7VE
>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>

Re: [Repeater-Builder] Re: Coax shielding

[Mike Morris]

At 08:40 AM 06/28/10, you wrote:

> > "Ian Wells"  wrote:
> > Currently I have no filters between the link transmitter
> > and its antenna.
>
>The next question in our Top Twenty Radio Hits - Countdown List
>is "do you have any spare or available cavities to try a few
>things we might suggest?"
>
>"Selection B"   Are any extra or "available to test with" Cavities
>configured as band-pass, notch or some combination there of?
>
>s.
>
>
>"Selection C"  Would you know the next winning 6 numbers for the
>Wednesday Evening California Supper Lotto?
>
> forget Selection C

One of my friends supports a number of client sites.  Once
a week or so he has to call a tech support line to get an
answer - anyone from Dell to HP to a software vendor.
Once the system is back up he occasionally plays with the
people on the telephone tech support lines... some
companies script require the tech support person close with
the line "Is there anything else I can help you with?"

He always says "Yes, in fact, six winning numbers".   Most of the
time that line gets a good laugh, followed by anything from
"Sorry, me first", on down.   Only once in the last six months
has he had a "Huh?"

[Repeater-Builder] Recording of mysterious noise

[gm7svk]

Hello,

Loaded sample to files section.
Has anyone encountered this sort of noise on a system or have a suggestion as 
to what might be generating it? Proving difficult to determine source. 

Thank you,
Doug - GM7SVK
 

[Repeater-Builder] New file uploaded to Repeater-Builder

[Repeater-Builder]

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the Repeater-Builder 
group.

  File: /Odd_noise.wav 
  Uploaded by : gm7svk  
  Description : Recording of mysterious noise 

You can access this file at the URL:
http://groups.yahoo.com/group/Repeater-Builder/files/Odd_noise.wav 

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles

Regards,

gm7svk